| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1952 | ----- | z | ----- | z | ----- | z | 1.19 | 1.47 | 0.91 | 0.54 | 1.20 | 0.04 | 0.00 | 0.63 | 0.64 | 6.62 | c | |||||||||
| 1953 | 1.70 | 0.26 | 1.23 | 1.37 | 0.48 | 0.00 | 0.49 | 1.34 | 0.12 | 0.86 | 0.93 | 0.79 | 9.57 | |||||||||||||
| 1954 | 1.09 | 0.37 | 1.39 | 0.82 | 0.43 | 0.98 | 0.72 | a | 0.19 | 1.66 | 0.70 | 0.88 | 0.46 | 9.69 | ||||||||||||
| 1955 | 1.22 | 1.97 | 0.12 | 0.50 | 1.11 | 1.56 | 0.22 | 0.36 | a | 1.96 | 0.19 | b | 1.64 | 1.25 | 12.10 | |||||||||||
| 1956 | 2.21 | 1.20 | 0.02 | 0.51 | 0.34 | 0.00 | 0.03 | 0.00 | 0.03 | 1.14 | 0.08 | 0.54 | 6.10 | |||||||||||||
| 1957 | 2.08 | 0.72 | 1.76 | 1.91 | 3.58 | 1.26 | 0.23 | 0.77 | 0.21 | 0.96 | 0.98 | 1.56 | 16.02 | |||||||||||||
| 1958 | 0.96 | 1.54 | 2.03 | 0.94 | 0.48 | 0.34 | 0.07 | 0.57 | 1.09 | 0.00 | 1.21 | 0.59 | 9.82 | |||||||||||||
| 1959 | 1.36 | 2.21 | 0.42 | 1.46 | 1.04 | 0.72 | a | ----- | z | ----- | z | 0.00 | o | 0.00 | c | 0.00 | b | 0.89 | 8.10 | c | ||||||
| 1960 | 1.08 | 2.52 | 1.59 | 0.65 | 0.37 | 0.20 | 0.00 | 0.45 | 0.91 | 1.86 | 0.91 | 0.73 | 11.27 | |||||||||||||
| 1961 | 0.00 | 0.64 | 2.65 | 0.81 | 0.14 | 0.00 | 0.86 | 1.14 | 2.44 | 2.36 | 1.21 | 1.93 | 14.18 | |||||||||||||
| 1962 | 0.42 | 2.72 | 1.83 | 1.50 | ----- | z | 0.22 | b | 0.56 | 0.00 | 0.59 | 0.89 | ----- | z | 0.01 | 8.74 | b | |||||||||
| 1963 | 1.42 | 0.42 | 2.24 | 3.37 | 0.02 | 1.26 | 0.01 | 0.70 | 1.29 | ----- | z | 1.62 | 0.59 | 12.94 | a | |||||||||||
| 1964 | 1.26 | ----- | z | 1.34 | 3.02 | ----- | z | ----- | z | 0.18 | 0.25 | 0.00 | 0.04 | 1.30 | 3.34 | 10.73 | c | |||||||||
| 1965 | 1.19 | 0.08 | 0.22 | 1.66 | 0.75 | 1.18 | 0.70 | 0.93 | 2.08 | 0.17 | 1.35 | 1.88 | 12.19 | |||||||||||||
| 1966 | 0.20 | 1.08 | 0.61 | 0.46 | 1.11 | 0.03 | 0.15 | 0.51 | 0.93 | 1.03 | 0.57 | 2.13 | 8.81 | |||||||||||||
| 1967 | 2.52 | 0.06 | 0.85 | 0.56 | 2.13 | 1.30 | 0.49 | 0.60 | 0.60 | 0.47 | 1.07 | 1.82 | 12.47 | |||||||||||||
| 1968 | 0.39 | 1.73 | 1.70 | 3.67 | 1.49 | 1.67 | 0.52 | 2.56 | 0.22 | 1.36 | 1.47 | 2.37 | 19.15 | |||||||||||||
| 1969 | 1.63 | 1.45 | a | 0.05 | 1.68 | 0.03 | 3.63 | 0.61 | 0.27 | 0.22 | 3.62 | 0.86 | 1.39 | 15.44 | ||||||||||||
| 1970 | 1.88 | 0.73 | 1.10 | 0.95 | d | 0.68 | 1.87 | 0.86 | 1.24 | 2.53 | 1.49 | 3.37 | 1.66 | 18.36 | ||||||||||||
| 1971 | 0.64 | 2.15 | b | 0.10 | 2.26 | 1.17 | 0.38 | 0.47 | 0.73 | 1.33 | 2.13 | 0.61 | 0.97 | 12.94 | ||||||||||||
| 1972 | 0.14 | a | 0.10 | ----- | z | 1.26 | 0.01 | 0.74 | 0.21 | 0.78 | 0.65 | 4.02 | ----- | z | 0.09 | e | 8.00 | b | ||||||||
| 1973 | 1.25 | b | 0.46 | 0.70 | 0.67 | 1.24 | 0.45 | 0.63 | c | 1.12 | 1.65 | 0.36 | 0.98 | 1.96 | 11.47 | |||||||||||
| 1974 | 1.30 | 0.63 | 0.68 | 1.99 | 0.14 | 0.21 | 0.44 | 0.08 | 0.00 | 2.41 | 0.67 | 1.39 | 9.94 | |||||||||||||
| 1975 | 1.34 | 0.38 | 1.25 | 1.81 | 2.14 | 1.19 | 1.23 | 0.44 | 0.12 | 1.38 | 0.63 | c | 0.91 | 12.82 | ||||||||||||
| 1976 | 0.67 | 1.56 | 0.92 | 1.26 | 0.38 | ----- | z | 0.02 | p | ----- | z | ----- | z | 0.00 | a | 0.22 | 0.07 | 5.08 | d | |||||||
| 1977 | 0.30 | 0.31 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.30 | k | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1.13 | 1.09 | 1.08 | 1.45 | 0.90 | 0.87 | 0.44 | 0.71 | 0.90 | 1.14 | 1.01 | 1.20 | 12.35 | |||||||||||||
| S.D. | 0.67 | 0.83 | 0.75 | 0.88 | 0.86 | 0.84 | 0.32 | 0.57 | 0.83 | 1.12 | 0.68 | 0.81 | 3.34 | |||||||||||||
| SKEW | 0.12 | 0.49 | 0.25 | 1.08 | 1.46 | 1.51 | 0.45 | 1.43 | 0.59 | 1.07 | 1.66 | 0.62 | 0.41 | |||||||||||||
| MAX | 2.52 | 2.72 | 2.65 | 3.67 | 3.58 | 3.63 | 1.23 | 2.56 | 2.53 | 4.02 | 3.37 | 3.34 | 19.15 | |||||||||||||
| MIN | 0.00 | 0.06 | 0.02 | 0.46 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 6.10 | |||||||||||||
| YRS | 25 | 23 | 23 | 25 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 25 | 18 | |||||||||||||